1.2.4
Controller power supply
If the controller has no power supply, it is OFF and does not provide any protection to the system. The controller cannot
enforce any trips, shutdowns or latches when it is off. The controller does not provide any control or power management. All
the controller relays de-energise.
The controller must have a reliable power supply, which must include a backup power supply. In addition, the switchboard
design must ensure that the system is sufficiently protected if the controller power supply fails.
1.2.5 Factory settings
The controller is delivered pre-programmed from the factory with a set of default settings. These settings are based on typical
values and may not be correct for your system. You must therefore check all parameters before using the controller.
1.2.6 Electrostatic discharge
You must protect the equipment terminals from static discharge during handling, including installation and dismounting. Once
the equipment is correctly installed and the frame ground is connected, it is no longer necessary to protect the terminals from
static discharge.
1.2.7 Do not manually override active alarm actions
DANGER!
Do not use switchboard or manual control to override the alarm action of an active alarm.
An alarm may be active because it is latched, or because the alarm condition is still present. If the alarm action is manually
overridden, a latched alarm does not do its alarm action again. In this situation, the latched alarm does not provide protection.
Latched Over-current alarm example
The controller trips a breaker because of over-current. The operator then manually (that is, not using the controller)
closes the breaker while the Over-current alarm is still latched.
If another over-current situation arises, the controller does not trip the breaker again. The controller regards the
original Over-current latched alarm as still active, and does not provide protection.
1.3 Legal information
1.3.1 Third party equipment
DEIF takes no responsibility for the installation or operation of any third party equipment, including the genset. Contact the
genset company if you have any doubt about how to install or operate the genset.
PPM 300 Operator's manual 4189340910 UK
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